IMPROVED, PROGRESSIVELY COLLAPSIBLE, DISPOSABLE CONTAINER

摘要

Progressively-collapsible disposable container, of the type in which at leas t part (2) of the container lateral surface consists of a bellows structure comprising a plurality of adjacent folds (A-G), each fold being formed by tw o opposite surfaces of different width, characterised in that the larger-width surface (A-D) is stiffer than the smaller-width one (D-E). Preferably, the greater stiffness of the larger surface of the folds is a shape stiffness, obtained shaping said surface with a stiffening step-rib (A-C), having round ed- off edges, projecting outwards of the container.